Answer:
B.O(1)
Explanation:
When we are implementing ADT stack using linked chain we can pop an entry from the stack having O(1) time complexity because in linked chain we have the head or top pointer in linked chain only.Popping and pushing in stack happens on only one end that is top.So we have move to move top in linked chain to the next and delete prev node.
Answer:
A computer has one IP address and many ports.
Explanation:
The two major types of DNS request are as follows;
- Recursive Query
- Iterative Query
<h3>What is a domain name system?</h3>
Domain name system is abbreviated as DNS.
A Domain Name System (DNS) converts domain names into IP addresses, which allow browsers to get to websites and other internet resources.
Basically, DNS is a directory of names that match with numbers.
Computer uses IP addresses to communicate, therefore, the DNS convert domain names to IP address for communication.
The two major types of DNS request are as follows;
- Recursive Query - Query that demands a resolution
- Iterative Query - Query that does not demand a resolution.
learn more on DNS here: brainly.com/question/14397200
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